20. I think I should have ____________ your mother when I was passing. A. come up with B. run into C. got on with D. dropped in on 21. He______________have gone this way; there's no other way to cross the river. A. should B. could C. must D. might 22. When studying for the university entrance exams, I got very little sleep, the ___________ of which were severe headaches and nausea. A. purposes B. side effects C. parts D. ends 23. We had such a ______________schedule for our trip to Paris that we didn't see all the sights. A. tight B. pressed C. squeezed D. cramped 24. There is a lower incidence ___________heart disease in most Mediterranean countries, and this can be attributed ___________diet. A. with .of B. of .with C. of .to D. for .to 25. I'm _______________ my brother is. A. nowhere near as ambitious as B. nothing as ambitious as C. nowhere like so ambitious as D. nothing near as ambitious as 26. Where's that ______________dress that your grandma gave you? A. lovely, long, pink, silk B. long, pink, lovely, silk C. pink, lovely, long, silk D. lovely, silk, pink, long 27. You must pay an admission fee ____________ you are under the age of ten. A. even if B. if C. unless D. otherwise 28. She was so frightened that she was shaking like ______________. A. jelly B. a flag C. the wind D. a leaf 29. The increase in carbon dioxide __________ from short haul flights is one of the causes of global ___________. A. pollution ............... heating B. emmisions ............... warming C. gases ............... warming D. emmisions ............... heating 30. ____________English are known for the amount of ____________tea they drink. A. The Ø B. Ø ............... Ø C. The a D. The the